At least that's the lesson a fan learned after he heckled the singer during her show at Chicago's House of Blues this week.

According to TMZ, the fan began to taunt Ms. Hill because she started the performance 50 minutes later than reportedly scheduled. The Grammy winner then addressed the situation by saying:

“Excuse me, there’s a gentleman over there who just did something I don’t like, can you please escort him out and refund his money…I don’t play that,” she said while on stage. “I don’t need to win you over, but you don’t need to win me over. You can go, and you can take all your money right back…”

The 39-year-old didn't stop there. She went on to say that she performs because she loves it and not because she owes anyone anything. She also told everyone in attendance, "you can get on your blogs and you can tweet and say whatever you want to, I don’t give a rat’s ass. I do this because I love it!”